Patents by Inventor Bernd Laska

Bernd Laska has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20210297001
    Abstract: A modular power converter with wide-bandgap semiconductors, in particular SiC semiconductors. The modular power converter has at least two base units. The base units are connected together on the input side, and each base unit has an input circuit on the input side and an output circuit on the output side. The input circuit and the output circuit are each formed by the wide-bandgap semiconductors arranged in a B6-bridge circuit. An intermediate circuit capacitor is connected in parallel with the input circuit and the output circuit forming an intermediate circuit. The input circuits of the base units or a sub-quantity of the base units are arranged in a series circuit. At least one inductor is arranged between each pair of input circuits.
    Type: Application
    Filed: July 22, 2019
    Publication date: September 23, 2021
    Applicant: Siemens Aktiengesellschaft
    Inventors: MARK-MATTHIAS BAKRAN, JÜRGEN BÖHMER, MARTIN HELSPER, EBERHARD ULRICH KRAFFT, BERND LASKA, ANDREAS NAGEL, STEFAN HANS WERNER SCHÖNEWOLF, JAN WEIGEL
  • Publication number: 20210211123
    Abstract: With a method and an actuation arrangement for actuating a MOSFET, in particular a wide-bandgap semiconductor MOSFET, a monitoring process is performed to determine whether the body diode of the MOSFET is electrically conducting or blocking. If the body diode is electrically conducting, the MOSFET is activated, and if the body diode is electrically blocking, the MOSFET is actuated in response to an actuation signal generated based on the drain-source voltage and the direction and intensity of the drain-source current of the MOSFET.
    Type: Application
    Filed: May 15, 2019
    Publication date: July 8, 2021
    Applicant: Siemens Aktiengesellschaft
    Inventors: MARK-MATTHIAS BAKRAN, JÜRGEN BÖHMER, MARTIN HELSPER, EBERHARD ULRICH KRAFFT, BERND LASKA, ANDREAS NAGEL, STEFAN HANS WERNER SCHÖNEWOLF, JAN WEIGEL
  • Patent number: 8565992
    Abstract: A method is disclosed for braking electrically driven vehicles, in particular rail vehicles. In at least one embodiment, the behavior of the brake system is configured directly as a function of the system state, i.e. the operating conditions of the vehicle, such as for example the laden state of the vehicle, temperature of the engines and in particular of the magnets, as well as redundancy requirements, and therefore permit the fully functioning mechanical brake which is present in vehicles nowadays to be eliminated.
    Type: Grant
    Filed: March 15, 2007
    Date of Patent: October 22, 2013
    Assignee: Siemens Aktiengesellschaft
    Inventors: Andreas Fuchs, Frank Jacobi von Wangelin, Bernd Laska, Lars Löwenstein
  • Publication number: 20100191432
    Abstract: A method is disclosed for braking electrically driven vehicles, in particular rail vehicles. In at least one embodiment, the behaviour of the brake system is configured directly as a function of the system state, i.e. the operating conditions of the vehicle, such as for example the laden state of the vehicle, temperature of the engines and in particular of the magnets, as well as redundancy requirements, and therefore permit the fully functioning mechanical brake which is present in vehicles nowadays to be eliminated.
    Type: Application
    Filed: March 15, 2007
    Publication date: July 29, 2010
    Inventors: Andreas Fuchs, Frank Jacobi von Wangelin, Bernd Laska, Lars Löwenstein